Turn signal noises through speakers.
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Joined: Mar 2019
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From: PENNSYLVANIA
Turn signal noises through speakers.
I need a little insight. I have a 2015 sgs. Factory radio, axxess line out converter,skar 400wattx4 amp, polk db652 6.5 speakers. I am getting a turn signal noise through my speakers. Only hear it when volume is turned down. I have tried 3 different sets of Rca's, 3 different loc's. I cleaned and added heavy duty ground strap from battery to chasis. I also have the amp grounded to the battery and a second ground in the fairing. The noise is not too noticeable if I do not ground the loc. But the sound is horrible when it is not grounded, besides the turn signal noise.But still can only hear it when volume is all the way down. If I put the 4 ways on it gets a bit louder. I have installed plenty of car audio systems and never had a problem like this. I do not have the bike started while I am trying to figure out what is causing the noise. I have it plugged into the battery tender as I am diagnosing. I am starting to think it is either the stereo it self. Or maybe to much power being drained from battery with it not running. I have done a lot of research on this issue , but everything I read says a ground issue. I have checked all my ground wires with a mulitmeter. Only 1 ground was .02 ohms. Which if I read correctly that is fine. The battery with out the bike started is at 12.5 volts. I also tried using the high level inputs on the amp with same results. I think I covered everything I have tried. Been trying for a couple days trying to figure this out. It probably would not bother most people, but I am the type, if I feel something is not right I keep at it. Somebody please tell me they have had this problem as well. Last minute adds as what I have done. I cut a pair of rca's and hooked to a speaker, the noise is there before the amp. I also cut the ground wires to the stereo and grounded them with thicker wire to battery. It is hard for me to believe 3 different loc's had the same problem.
Last edited by Oneshot660; Apr 9, 2022 at 08:42 PM.
Road Warrior
Joined: Feb 2016
Posts: 1,354
Likes: 399
From: Vancouver, BC
It is a ground issue. Both the radio and amp should ideally be grounded to the same place to avoid any differences in ground potential. Try a GLI such as this one to go between the low-level output of the LoC and the input to your amp. While this won't fix the actual source of the noise it may very well make it inaudible or much less annoying.
Thread Starter
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Joined: Mar 2019
Posts: 78
Likes: 5
From: PENNSYLVANIA
It is a ground issue. Both the radio and amp should ideally be grounded to the same place to avoid any differences in ground potential. Try a GLI such as this one to go between the low-level output of the LoC and the input to your amp. While this won't fix the actual source of the noise it may very well make it inaudible or much less annoying.
Road Warrior
Joined: Feb 2016
Posts: 1,354
Likes: 399
From: Vancouver, BC
hmmm. on speculation try moving the amp ground temporarily to one of the radio mounting bolts. (you typically won't see potential differences in grounds using a MM except in really bad cases). Sources of ground noise can be really hard to diagnose. If you can only hear the noise with the volume down and the bike not running it might be easier to live with it (I know it would drive my OCD brain over the edge but maybe you're like 98% of everyone else).
Last edited by hamah; Apr 9, 2022 at 08:52 PM.
Thread Starter
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Advanced
Joined: Mar 2019
Posts: 78
Likes: 5
From: PENNSYLVANIA
hmmm. on speculation try moving the amp ground temporarily to one of the radio mounting bolts. (you typically won't see potential differences in grounds using a MM except in really bad cases). Sources of ground noise can be really hard to diagnose. If you can only hear the noise with the volume down and the bike not running it might be easier to live with it (I know it would drive my OCD brain over the edge but maybe you're like 98% of everyone else).
Seasoned HDF Member
Joined: Aug 2006
Posts: 24,537
Likes: 30,864
From: Pennsylvania
May want to pull all your turn signal bulbs, clean the sockets and check for corrosion, then put a little dielectric grease in the ends of the bulbs where they go into the socket. You may have a resistance factor if there is a little corrosion in the bulb sockets causing the noise. Just spitballing here.
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
I need a little insight. I have a 2015 sgs. Factory radio, axxess line out converter,skar 400wattx4 amp, polk db652 6.5 speakers. I am getting a turn signal noise through my speakers. Only hear it when volume is turned down. I have tried 3 different sets of Rca's, 3 different loc's. I cleaned and added heavy duty ground strap from battery to chasis. I also have the amp grounded to the battery and a second ground in the fairing. The noise is not too noticeable if I do not ground the loc. But the sound is horrible when it is not grounded, besides the turn signal noise.But still can only hear it when volume is all the way down. If I put the 4 ways on it gets a bit louder. I have installed plenty of car audio systems and never had a problem like this. I do not have the bike started while I am trying to figure out what is causing the noise. I have it plugged into the battery tender as I am diagnosing. I am starting to think it is either the stereo it self. Or maybe to much power being drained from battery with it not running. I have done a lot of research on this issue , but everything I read says a ground issue. I have checked all my ground wires with a mulitmeter. Only 1 ground was .02 ohms. Which if I read correctly that is fine. The battery with out the bike started is at 12.5 volts. I also tried using the high level inputs on the amp with same results. I think I covered everything I have tried. Been trying for a couple days trying to figure this out. It probably would not bother most people, but I am the type, if I feel something is not right I keep at it. Somebody please tell me they have had this problem as well. Last minute adds as what I have done. I cut a pair of rca's and hooked to a speaker, the noise is there before the amp. I also cut the ground wires to the stereo and grounded them with thicker wire to battery. It is hard for me to believe 3 different loc's had the same problem.
How loud is the noise? Can you hear it when music is playing?
If you can get the noise to occur while you're standing there, start with each connection. Touch or move or even disconnect each RCA and see if the noise stops.
If its a constant low hum or buzz, that might just be inherent of your aftermarket amp/wiring or speakers. BTW check those speakers....does the noise come from both sides? If not, swap them with each other and see if the noise follows.
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Stellar HDF Member
Joined: Oct 2015
Posts: 2,681
Likes: 851
From: Puyallup, wa
So the noise you hear you say is the turn signals? SO that mean it only occurs when you turn your turn signals on? Are you running any aftermarket turn signal processors? like the magic strobe?
How loud is the noise? Can you hear it when music is playing?
If you can get the noise to occur while you're standing there, start with each connection. Touch or move or even disconnect each RCA and see if the noise stops.
If its a constant low hum or buzz, that might just be inherent of your aftermarket amp/wiring or speakers. BTW check those speakers....does the noise come from both sides? If not, swap them with each other and see if the noise follows.
How loud is the noise? Can you hear it when music is playing?
If you can get the noise to occur while you're standing there, start with each connection. Touch or move or even disconnect each RCA and see if the noise stops.
If its a constant low hum or buzz, that might just be inherent of your aftermarket amp/wiring or speakers. BTW check those speakers....does the noise come from both sides? If not, swap them with each other and see if the noise follows.
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Thread Starter
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Advanced
Joined: Mar 2019
Posts: 78
Likes: 5
From: PENNSYLVANIA
So the noise you hear you say is the turn signals? SO that mean it only occurs when you turn your turn signals on? Are you running any aftermarket turn signal processors? like the magic strobe?
How loud is the noise? Can you hear it when music is playing?
If you can get the noise to occur while you're standing there, start with each connection. Touch or move or even disconnect each RCA and see if the noise stops.
If its a constant low hum or buzz, that might just be inherent of your aftermarket amp/wiring or speakers. BTW check those speakers....does the noise come from both sides? If not, swap them with each other and see if the noise follows.
How loud is the noise? Can you hear it when music is playing?
If you can get the noise to occur while you're standing there, start with each connection. Touch or move or even disconnect each RCA and see if the noise stops.
If its a constant low hum or buzz, that might just be inherent of your aftermarket amp/wiring or speakers. BTW check those speakers....does the noise come from both sides? If not, swap them with each other and see if the noise follows.